[Xylakant]

I’d question if this is purely the result of a sugar addiction. This is a very American figure, other countries have less problems, even though sugar is widely available.

Obesity has a variety of contributing factors, (lack of) access to actual healthy food, lack of physical exercise, high calorie intake (certainly aided by sugar), ...

[jakeogh]

There appears to be a positive (bad) feedback loop many people hit involving gut bacteria.